http://www.cdc.gov/ncbddd/folicacid/
This document also available in Spanish
National Center on Birth Defects and Developmental Disabilities
Links to information related to the national campaign on promoting the use of folic acid to prevent NTDs (neural tube defects); other related information on birth defects for consumers, in both English and Spanish; an overview of folic acid and its role in preventing birth defects; answers to frequently asked questions on folic acid and birth defects; information for the health professional; and more.